Why do keyboards with passthrough usb require two usb connections at the end of the cable instead of just one?
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The real answer is most keyboards with a usb passthrough isnt a passthrough at all, it’s just another usb cable run inside the main bundle with the other usb connection for the keyboard.
Few keyboards have an actual onboard usb hub, as that would cost more money and be harder to fit physically, so they just give you a spare usb port with a wire thats combined in the wrapped cable the original usb wire for the keyboard is running in.
Tl:dr it’s not an actual passthrough it’s a glorified usb extension cable basically, and because it’s cheaper that way.
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